Actually I use no Nodes for translucency.
I think I noticed this slow render by Nodes and I started use normal LW system...after that I forgot about it
I send you test scene with normal setup and Node (just disable Node to check speed render).
So if you want use translucency better is to use standard translucency setting.

Thanks Janusz, there is a big difference between the 2 renders.
For my part translucy takes age to compute ( as there is a window glass behind,or maybe my mesh in quads isn't optimised).
Maybe i'll try to have a go on a other way round.

lamerehic wrote:Thanks Janusz, there is a big difference between the 2 renders.
For my part translucy takes age to compute ( as there is a window glass behind,or maybe my mesh in quads isn't optimised).
Maybe i'll try to have a go on a other way round.

Probably you use Final Gathering - forget!
Use QMC system with these minimum settings: